Artificial intelligent assistant

crood

crood, croud, v. Sc.
  Also 6 crowd.
  [Echoic.]
  intr. To make the murmuring sound of a dove. (Also, to croak: see quot. 1710.)

1513 Douglas æneis xii. Prol. 237 The cowschet crowdis and pirkis on the rys. 1619 Z. Boyd Last Battell (1629) 299 (Jam.) Turtles crouding with sighes and grones. 1710 Ruddiman Gloss. to Douglas' æneis, Crowde, to curr like a dove. We now use it Scot. for the noise of frogs. 1785 Burns To W. Simpson xii, While thro' the braes the cushat croods With wailfu' cry!

Oxford English Dictionary

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